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The Dense Stellar Cores of Giant HII Regions

Published online by Cambridge University Press:  04 August 2017

A.F.J. Moffat ,
W. Seggewiss  and
M. M. Shara
A.F.J. Moffat
Affiliation:
Dépt. de Physique, Univ. de Montréal, Canada
W. Seggewiss
Affiliation:
Univ.-Sternwarte Bonn, F.R. Germany
M. M. Shara
Affiliation:
Space Telescope Science Inst., Baltimore, USA

Abstract

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We explore the bright central diffuse objects of the closest visible giant HII regions 30 Dor (LMC) and NGC 3603 (Galaxy), with the aid of CCD imagery in 1′ seeing. Both central objects are interpreted as dense cluster cores composed of normal stars with masses ranging up to ≈ 100 M⊙. Each object appears to contain at least one close massive binary. Being significantly denser, the core of NGC 3603 seems to be dynamically more evolved than the core of 30 Dor.

Type
Open Clusters
Information
Symposium - International Astronomical Union , Volume 113: Dynamic of Stars Clusters , 1985 , pp. 467 - 469
Copyright
Copyright © Reidel 1985